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Worksheets

Muscular System

Total questions: 30

Worksheet time: 30mins

Name
Class
Date
1.

A bundle of muscle fibers is called ________.

a)

fascicles

b)

endomysium

c)

epimysium

d)

perimysium

2.

These types of muscles are found in the walls of the hollow visceral organs such as the stomach, urinary bladder, and respiratory passages.

a)

smooth muscles

b)

skeletal muscles

c)

cardiac muscles

d)

gut muscles

3.

The organelles of a muscle fiber are called ______________.

a)

myofibril

b)

fibria

c)

myosin

d)

sarcomere

4.

This pathway of regenerating energy for muscle contraction provides more ATP that lasts for hours compared to other pathways.

a)

Direct phosphorylation

b)

Aerobic respiration

c)

Anaerobic glycolysis

5.

Accumulating this substance in the body during activity results in muscle fatigue and muscle soreness.

a)

lactic acid

b)

ATP

c)

pyruvate

d)

creatine

6.

A type of body movement when you move your limb away from the midline.

a)

abduction

b)

adduction

c)

flexion

d)

extension

7.

These are muscles that help prime movers by producing the same movement or by reducing undesirable movement.

a)

synergist

b)

antagonist

c)

protagonist

8.

The arrangement of fascicles of pectoralis major.

a)

convergent

b)

parallel

c)

fusiform

d)

pennate

9.

In the head and neck muscles, what muscle can be categorized as both facial and chewing muscle?

a)

buccinator

b)

orbicularis oris

c)

zygomaticus muscle

d)

masseter

10.

The six-pack abs visible in many body builders is what muscle _____________.

a)

rectus abdominis

b)

transverse abdominis

c)

internal oblique

d)

external oblique

11.

Intramuscular injection to be given in the gluteal region must be done in the

a)

gluteus maximus

b)

gluteus medius

c)

gluteus minimus

d)

gluteus superios

12.

A contraction in which a skeletal muscle does not shorten but its tension increases are called isometric.

a)

True

b)

False

13.

The neurotransmitter used by the nervous system to activate skeletal muscle cells is acetylcholine.

a)

True

b)

False

14.

The epimysium covers individual muscle fibers.

a)

True

b)

False

15.

Brachioradialis is a strong muscle that resides mainly in the forearm. Its function is to lift ulna.

a)

True

b)

False

16.

Skeletal muscle is considered involuntary because it is the only type of muscle usually subject to conscious control.

a)

True

b)

False

17.

When a muscle fiber contracts, the I bands diminish in size, the H zones disappear, and the A bands move closer together but do not diminish in length.

a)

True

b)

False

18.

Plantar flexion at the ankle joint is accomplished by the tibialis anterior muscle.

a)

True

b)

False

19.

Lactic acid results from aerobic respiration.

a)

True

b)

False

20.

The method of attachment of the muscle to the bone is one way of naming the skeletal muscles.

a)

True

b)

False

21.

What's this muscle?

a)

gastrocnemius

b)

soleus

c)

sartorius

d)

achilles

22.

What's this muscle?

a)

sternocleidomastoid

b)

platysma

c)

trapezius

d)

pectoralis major

23.

What's this muscle?

a)

latissimus dorsi

b)

trapezius

c)

external oblique

d)

pectoralis major

24.

What's this muscle?

a)

deltoid

b)

pectoralis major

c)

sternocleidomastoid

d)

platysma

25.

What's this muscle?

a)

vastus lateralis

b)

rectus femoris

c)

vastus medialis

d)

vastus intermedius

26.

Paralysis of which of the following would make an individual unable to flex the knee:

a)

iliopsoas

b)

hamstring group

c)

sartorius

d)

gastrocnemius

27.

The major function of the sarcoplasmic reticulum in skeletal muscle contraction is to:

a)

store ATP

b)

provide a source of myosin for the contraction process

c)

synthesize actin and myosin myofilaments

d)

regulate intracellular calcium concentration

28.

Some muscles are sites for intramuscular injections, they are:

a)

Gluteus maximus, deltoid muscle, vatus medialis

b)

Gluteus medius, deltoid, vastus lateralis

c)

Gluteus medius, biceps brachii, gastrocnemius

29.

Which one of the following is the action of the orbicularis oris:

a)

allows blinking, squinting, and various other protective mechanisms for the eye

b)

closes the jaw

c)

closes, purses, and protrudes the lips

30.

thin filament

a)

actin

b)

myosin

c)

H band

d)

A band